Product folks come up with features. They have no idea how hard those features are to implement. Which in a way is a blessing; they'll come up with the best features if they don't have to consider the implementation details. But because there are always trade-offs in implementation they also don't understand those.

A feature that is super difficult to implement, and that therefore has trade-offs on speed, maintainability, etc, should be communicated back to the product folks. If you have to move to a framework just to implement this one feature, then that is either because this one feature is really badly or over-designed, or that one feature is absolutely critical to the entire site, which is stupidly rare and again a symptom that someone hasn't really thought this through enough.

The failure in communication is usually "you're just the nerd pushing the nerd buttons, you don't have valid opinions on product design" which is a cause of so, so many problems in our industry.